<?php
class Chinese {
	/**
	* @var array $chineseSpellList 拼音编码对应表
	* @access private
	*/
	private $chineseSpellList = array(
		'a'=>-20319,
		'ai'=>-20317,
		'an'=>-20304,
		'ang'=>-20295,
		'ao'=>-20292,
		'ba'=>-20283,
		'bai'=>-20265,
		'ban'=>-20257,
		'bang'=>-20242,
		'bao'=>-20230,
		'bei'=>-20051,
		'ben'=>-20036,
		'beng'=>-20032,
		'bi'=>-20026,
		'bian'=>-20002,
		'biao'=>-19990,
		'bie'=>-19986,
		'bin'=>-19982,
		'bing'=>-19976,
		'bo'=>-19805,
		'bu'=>-19784,
		'ca'=>-19775,
		'cai'=>-19774,
		'can'=>-19763,
		'cang'=>-19756,
		'cao'=>-19751,
		'ce'=>-19746,
		'ceng'=>-19741,
		'cha'=>-19739,
		'chai'=>-19728,
		'chan'=>-19725,
		'chang'=>-19715,
		'chao'=>-19540,
		'che'=>-19531,
		'chen'=>-19525,
		'cheng'=>-19515,
		'chi'=>-19500,
		'chong'=>-19484,
		'chou'=>-19479,
		'chu'=>-19467,
		'chuai'=>-19289,
		'chuan'=>-19288,
		'chuang'=>-19281,
		'chui'=>-19275,
		'chun'=>-19270,
		'chuo'=>-19263,
		'ci'=>-19261,
		'cong'=>-19249,
		'cou'=>-19243,
		'cu'=>-19242,
		'cuan'=>-19238,
		'cui'=>-19235,
		'cun'=>-19227,
		'cuo'=>-19224,
		'da'=>-19218,
		'dai'=>-19212,
		'dan'=>-19038,
		'dang'=>-19023,
		'dao'=>-19018,
		'de'=>-19006,
		'deng'=>-19003,
		'di'=>-18996,
		'dian'=>-18977,
		'diao'=>-18961,
		'die'=>-18952,
		'ding'=>-18783,
		'diu'=>-18774,
		'dong'=>-18773,
		'dou'=>-18763,
		'du'=>-18756,
		'duan'=>-18741,
		'dui'=>-18735,
		'dun'=>-18731,
		'duo'=>-18722,
		'e'=>-18710,
		'en'=>-18697,
		'er'=>-18696,
		'fa'=>-18526,
		'fan'=>-18518,
		'fang'=>-18501,
		'fei'=>-18490,
		'fen'=>-18478,
		'feng'=>-18463,
		'fo'=>-18448,
		'fou'=>-18447,
		'fu'=>-18446,
		'ga'=>-18239,
		'gai'=>-18237,
		'gan'=>-18231,
		'gang'=>-18220,
		'gao'=>-18211,
		'ge'=>-18201,
		'gei'=>-18184,
		'gen'=>-18183,
		'geng'=>-18181,
		'gong'=>-18012,
		'gou'=>-17997,
		'gu'=>-17988,
		'gua'=>-17970,
		'guai'=>-17964,
		'guan'=>-17961,
		'guang'=>-17950,
		'gui'=>-17947,
		'gun'=>-17931,
		'guo'=>-17928,
		'ha'=>-17922,
		'hai'=>-17759,
		'han'=>-17752,
		'hang'=>-17733,
		'hao'=>-17730,
		'he'=>-17721,
		'hei'=>-17703,
		'hen'=>-17701,
		'heng'=>-17697,
		'hong'=>-17692,
		'hou'=>-17683,
		'hu'=>-17676,
		'hua'=>-17496,
		'huai'=>-17487,
		'huan'=>-17482,
		'huang'=>-17468,
		'hui'=>-17454,
		'hun'=>-17433,
		'huo'=>-17427,
		'ji'=>-17417,
		'jia'=>-17202,
		'jian'=>-17185,
		'jiang'=>-16983,
		'jiao'=>-16970,
		'jie'=>-16942,
		'jin'=>-16915,
		'jing'=>-16733,
		'jiong'=>-16708,
		'jiu'=>-16706,
		'ju'=>-16689,
		'juan'=>-16664,
		'jue'=>-16657,
		'jun'=>-16647,
		'ka'=>-16474,
		'kai'=>-16470,
		'kan'=>-16465,
		'kang'=>-16459,
		'kao'=>-16452,
		'ke'=>-16448,
		'ken'=>-16433,
		'keng'=>-16429,
		'kong'=>-16427,
		'kou'=>-16423,
		'ku'=>-16419,
		'kua'=>-16412,
		'kuai'=>-16407,
		'kuan'=>-16403,
		'kuang'=>-16401,
		'kui'=>-16393,
		'kun'=>-16220,
		'kuo'=>-16216,
		'la'=>-16212,
		'lai'=>-16205,
		'lan'=>-16202,
		'lang'=>-16187,
		'lao'=>-16180,
		'le'=>-16171,
		'lei'=>-16169,
		'leng'=>-16158,
		'li'=>-16155,
		'lia'=>-15959,
		'lian'=>-15958,
		'liang'=>-15944,
		'liao'=>-15933,
		'lie'=>-15920,
		'lin'=>-15915,
		'ling'=>-15903,
		'liu'=>-15889,
		'long'=>-15878,
		'lou'=>-15707,
		'lu'=>-15701,
		'lv'=>-15681,
		'luan'=>-15667,
		'lue'=>-15661,
		'lun'=>-15659,
		'luo'=>-15652,
		'ma'=>-15640,
		'mai'=>-15631,
		'man'=>-15625,
		'mang'=>-15454,
		'mao'=>-15448,
		'me'=>-15436,
		'mei'=>-15435,
		'men'=>-15419,
		'meng'=>-15416,
		'mi'=>-15408,
		'mian'=>-15394,
		'miao'=>-15385,
		'mie'=>-15377,
		'min'=>-15375,
		'ming'=>-15369,
		'miu'=>-15363,
		'mo'=>-15362,
		'mou'=>-15183,
		'mu'=>-15180,
		'na'=>-15165,
		'nai'=>-15158,
		'nan'=>-15153,
		'nang'=>-15150,
		'nao'=>-15149,
		'ne'=>-15144,
		'nei'=>-15143,
		'nen'=>-15141,
		'neng'=>-15140,
		'ni'=>-15139,
		'nian'=>-15128,
		'niang'=>-15121,
		'niao'=>-15119,
		'nie'=>-15117,
		'nin'=>-15110,
		'ning'=>-15109,
		'niu'=>-14941,
		'nong'=>-14937,
		'nu'=>-14933,
		'nv'=>-14930,
		'nuan'=>-14929,
		'nue'=>-14928,
		'nuo'=>-14926,
		'o'=>-14922,
		'ou'=>-14921,
		'pa'=>-14914,
		'pai'=>-14908,
		'pan'=>-14902,
		'pang'=>-14894,
		'pao'=>-14889,
		'pei'=>-14882,
		'pen'=>-14873,
		'peng'=>-14871,
		'pi'=>-14857,
		'pian'=>-14678,
		'piao'=>-14674,
		'pie'=>-14670,
		'pin'=>-14668,
		'ping'=>-14663,
		'po'=>-14654,
		'pu'=>-14645,
		'qi'=>-14630,
		'qia'=>-14594,
		'qian'=>-14429,
		'qiang'=>-14407,
		'qiao'=>-14399,
		'qie'=>-14384,
		'qin'=>-14379,
		'qing'=>-14368,
		'qiong'=>-14355,
		'qiu'=>-14353,
		'qu'=>-14345,
		'quan'=>-14170,
		'que'=>-14159,
		'qun'=>-14151,
		'ran'=>-14149,
		'rang'=>-14145,
		'rao'=>-14140,
		're'=>-14137,
		'ren'=>-14135,
		'reng'=>-14125,
		'ri'=>-14123,
		'rong'=>-14122,
		'rou'=>-14112,
		'ru'=>-14109,
		'ruan'=>-14099,
		'rui'=>-14097,
		'run'=>-14094,
		'ruo'=>-14092,
		'sa'=>-14090,
		'sai'=>-14087,
		'san'=>-14083,
		'sang'=>-13917,
		'sao'=>-13914,
		'se'=>-13910,
		'sen'=>-13907,
		'seng'=>-13906,
		'sha'=>-13905,
		'shai'=>-13896,
		'shan'=>-13894,
		'shang'=>-13878,
		'shao'=>-13870,
		'she'=>-13859,
		'shen'=>-13847,
		'sheng'=>-13831,
		'shi'=>-13658,
		'shou'=>-13611,
		'shu'=>-13601,
		'shua'=>-13406,
		'shuai'=>-13404,
		'shuan'=>-13400,
		'shuang'=>-13398,
		'shui'=>-13395,
		'shun'=>-13391,
		'shuo'=>-13387,
		'si'=>-13383,
		'song'=>-13367,
		'sou'=>-13359,
		'su'=>-13356,
		'suan'=>-13343,
		'sui'=>-13340,
		'sun'=>-13329,
		'suo'=>-13326,
		'ta'=>-13318,
		'tai'=>-13147,
		'tan'=>-13138,
		'tang'=>-13120,
		'tao'=>-13107,
		'te'=>-13096,
		'teng'=>-13095,
		'ti'=>-13091,
		'tian'=>-13076,
		'tiao'=>-13068,
		'tie'=>-13063,
		'ting'=>-13060,
		'tong'=>-12888,
		'tou'=>-12875,
		'tu'=>-12871,
		'tuan'=>-12860,
		'tui'=>-12858,
		'tun'=>-12852,
		'tuo'=>-12849,
		'wa'=>-12838,
		'wai'=>-12831,
		'wan'=>-12829,
		'wang'=>-12812,
		'wei'=>-12802,
		'wen'=>-12607,
		'weng'=>-12597,
		'wo'=>-12594,
		'wu'=>-12585,
		'xi'=>-12556,
		'xia'=>-12359,
		'xian'=>-12346,
		'xiang'=>-12320,
		'xiao'=>-12300,
		'xie'=>-12120,
		'xin'=>-12099,
		'xing'=>-12089,
		'xiong'=>-12074,
		'xiu'=>-12067,
		'xu'=>-12058,
		'xuan'=>-12039,
		'xue'=>-11867,
		'xun'=>-11861,
		'ya'=>-11847,
		'yan'=>-11831,
		'yang'=>-11798,
		'yao'=>-11781,
		'ye'=>-11604,
		'yi'=>-11589,
		'yin'=>-11536,
		'ying'=>-11358,
		'yo'=>-11340,
		'yong'=>-11339,
		'you'=>-11324,
		'yu'=>-11303,
		'yuan'=>-11097,
		'yue'=>-11077,
		'yun'=>-11067,
		'za'=>-11055,
		'zai'=>-11052,
		'zan'=>-11045,
		'zang'=>-11041,
		'zao'=>-11038,
		'ze'=>-11024,
		'zei'=>-11020,
		'zen'=>-11019,
		'zeng'=>-11018,
		'zha'=>-11014,
		'zhai'=>-10838,
		'zhan'=>-10832,
		'zhang'=>-10815,
		'zhao'=>-10800,
		'zhe'=>-10790,
		'zhen'=>-10780,
		'zheng'=>-10764,
		'zhi'=>-10587,
		'zhong'=>-10544,
		'zhou'=>-10533,
		'zhu'=>-10519,
		'zhua'=>-10331,
		'zhuai'=>-10329,
		'zhuan'=>-10328,
		'zhuang'=>-10322,
		'zhui'=>-10315,
		'zhun'=>-10309,
		'zhuo'=>-10307,
		'zi'=>-10296,
		'zong'=>-10281,
		'zou'=>-10274,
		'zu'=>-10270,
		'zuan'=>-10262,
		'zui'=>-10260,
		'zun'=>-10256,
		'zuo'=>-10254
	);

	/**
	* 取汉字所有拼音
	* @param string $chinese 	要转换的汉字
	* @param string $delimiter 	分隔符
	* @param int 	$length 	返回的长度
	* @return string
	*/
	public function getFullSpell($chinese, $delimiter = '', $length = 0) {
		$spell = $this->getChineseSpells($chinese, $delimiter);
		if ($length) {
			$spell = substr($spell, 0, $length);
		}
		return $spell;
	}

	/**
	* 取汉字拼音首字母
	*
	* @param 	string 	$chinese 	要转化的汉子
	* @return 	string
	*/
	public function getFirstLetter($chinese)
	{
		$result = '' ;
		for ($i = 0; $i < strlen($chinese); $i ++) {
			$p = ord(substr($chinese,$i, 1));
			if ($p>160) {
				$q = ord(substr($chinese,++ $i,1));
				$p = $p*256 + $q - 65536;
			}
			$result .= substr($this->getChineseSpell($p),0,1);
		}
	   return $result ;
	}

	/**
	* 取一个汉字码对应的拼音
	* @param 	int 	$num 	汉字码
	* @param 	string 	$blank 	空白字符
	* @return string
	*/
	private function getChineseSpell ($num, $blank = '') {
		if ( $num > 0 && $num < 160 ) {
			return chr($num);
		} elseif ($num < -20319||$num > -10247) {
			return $blank;
		} else {
			foreach ($this->chineseSpellList as $spell => $code) {
				if ($code > $num) break;
				$result = $spell;
			}
			return $result;
		}
	}
	
	/**
	* 取汉字拼音
	* @param 	string 	$chinese 	要转换的汉字
	* @param 	string 	$delimiter 	分隔符
	* @param 	int 	$first 		是否只返回第一个
	* @return string
	*/
	private function getChineseSpells($chinese, $delimiter = ' ', $first=0)
	{
		$result = array();
		for ($i = 0; $i < strlen($chinese); $i ++) {
			$p = ord(substr($chinese, $i, 1));
			if ($p>160) {
				$q = ord(substr($chinese,++ $i, 1));
				$p = $p*256 + $q - 65536;
			}
			$result[] = $this->getChineseSpell($p);
			if ($first) {
				return $result[0];
			}
		}
	   return implode($delimiter, $result);
	}
}
?>